
2002 Ford F-150 XL 4.6L MIL Lamp on
I tested the EGR valve-ok. Tested vacuum to the EGR vacuum
solenoid-ok. Tested vacuum to the EGR from the solenoid-ok.
Inspected the EGR DPFE voltages-varies from 1.09-1.94-NG.
Replaced the DPFE sensor. Same readings with the new
sensor.
FIX posted 6/27/2009
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Message Closed w/FIX
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VIN | 3FTRF17W82 |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | When EGR System Test Is Run |
Misc. | MIL On |
Trouble Codes
P0401 | EGR System Insufficient Flow Detected |
Message Closed w/FIX
Vehicle Data
2002 Ford F-150 XL
VIN | 3FTRF17W82 |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | When EGR System Test Is Run |
Misc. | MIL On |
Trouble Codes
P0401 | EGR System Insufficient Flow Detected |